Modeling and validation of ultrasound-generated cavitation bubble dynamics

Cavitation plays an important role in a variety of ultrasound procedures.
However, predicting the detailed bubble dynamics remains challenging, in
no small part due to uncertainties in the system and, until now, the
dearth of validation data. In this presentation, we provide a numerical
modeling framework for spherical bubble dynamics in soft matter and
validate this model against ultrasound-generated cavitation experiments.
In particular, we consider the time history of bubble growth and collapse
over one cycle. Uncertainties in the model and experiments are discussed.
Finally, we use threshold simulations to determine a bounded range of
quantities difficult to measure experimentally, such as nucleus size and
peak negative pressure.